Acacia melanoxylon

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Acacia melanoxylon R.Br.

Fabaceae

Life form: tree
Usage: economic plant

Exposure: sun   8

Soil: sand - Soil: gritty-sandy - Soil: loam - Soil: sandy loam - Soil: gritty loam - Soil: clay - Soil: sandy clay - Soil: loamy clay

Arrangement: alternate
Leaves: evergreen

Shape: ovate

Division: bipinnate

Shape: globose
Fruit: legume

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Inflorescence: raceme

Petals: single
Habit: not specified

Canopy: rounded to broadly spreading

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Rosopsida
Subclassis:
Rosidae
Superordo:
Fabanae
Ordo:
Fabales

Acacia melanoxylon is a tree.

Naming

Acacia melanoxylon was described by Robert Brown in 1813. The name is considered as validly published.

Taxonomy

Acacia melanoxylon is a species in the genus Acacia which contains approximately 1550 to 1852 species and belongs to the family of the Fabaceae (Legume Family).

Characteristics

Growth

The trees are comparatively fast-growing and short-lived. They reach heights of 5 to 25 metres and have a rounded to broadly spreading canopy The main growing season is in spring and summer.

Wood and Bark

Leaves

Acacia melanoxylon is evergreen. The green, bipinnate leaves are alternate. The leaflets are ovate and have entire margins.

Flowers and Fruits

Acacia melanoxylon produces racemes of showy, white globose flowers from March to April.

From summer to autumn the trees produce an abundance of ornamental brown legumes that are persistent on the plant.

Root System

Distribution

Acacia melanoxylon is native to Queensland, New South Wales, Victoria and Tasmania and is naturalized in North Afrika and Southwest Europe.

Cultivation

The trees prefer a sunny situation. The substrate should be sandy, gritty-sandy, loamy, sandy-loamy, gritty-loamy, clay, sandy clay or loamy clay and comparatively poor with a pH between 6 and 8,3. The plants need a soil depth of at least 71 centimetres for good growth. They tolerate temperatures down to -12°C (USDA zone 8) and need a frost-free period of at least 26 weeks.

Tolerance of special soil conditions

  • none: anaerobic soil
  • low: soil salinity, calcareous soil
  • high: drought

Uses

The recommended planting distance is 3,5 metres.

Maintenance and Propagation

  • Plants can be cut back down to the trunk (coppicing) as necessary.

Propagate by sowing or by cuttings.

Cultivars

Pests and Diseases

Literature

  • Walter Erhardt, Erich Götz, Nils Bödeker, Siegmund Seybold: Der große Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
  • Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.

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